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Finding the Fourth Proportional to 64,136.80, 96,010.80 and 48,455.20

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Solution

The fourth proportional to 64,136.80, 96,010.80 and 48,455.20 is: 72,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,136.80 : 96,010.80 = 48,455.20 : x
  2. Step 2: Convert to fraction form
    64,136.80/96,010.80 = 48,455.20/x
  3. Step 3: Cross multiply
    64,136.80x = 96,010.80 × 48,455.20
  4. Step 4: Simplify right side
    64,136.80x = 4,652,222,516.16
  5. Step 5: Solve for x
    x = 4,652,222,516.16/64,136.80
  6. Step 6: Final answer
    x = 72,535.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.